1 #ifndef _LINUX_PTRACE_H
2 #define _LINUX_PTRACE_H
3 /* ptrace.h */
4 /* structs and defines to help the user use the ptrace system call. */
5
6 /* has the defines to get at the registers. */
7
8 #define PTRACE_TRACEME 0
9 #define PTRACE_PEEKTEXT 1
10 #define PTRACE_PEEKDATA 2
11 #define PTRACE_PEEKUSR 3
12 #define PTRACE_POKETEXT 4
13 #define PTRACE_POKEDATA 5
14 #define PTRACE_POKEUSR 6
15 #define PTRACE_CONT 7
16 #define PTRACE_KILL 8
17 #define PTRACE_SINGLESTEP 9
18
19 #define PTRACE_ATTACH 0x10
20 #define PTRACE_DETACH 0x11
21
22 #define PTRACE_SYSCALL 24
23
24 /* 0x4200-0x4300 are reserved for architecture-independent additions. */
25 #define PTRACE_SETOPTIONS 0x4200
26 #define PTRACE_GETEVENTMSG 0x4201
27 #define PTRACE_GETSIGINFO 0x4202
28 #define PTRACE_SETSIGINFO 0x4203
29
30 /* options set using PTRACE_SETOPTIONS */
31 #define PTRACE_O_TRACESYSGOOD 0x00000001
32 #define PTRACE_O_TRACEFORK 0x00000002
33 #define PTRACE_O_TRACEVFORK 0x00000004
34 #define PTRACE_O_TRACECLONE 0x00000008
35 #define PTRACE_O_TRACEEXEC 0x00000010
36 #define PTRACE_O_TRACEVFORKDONE 0x00000020
37 #define PTRACE_O_TRACEEXIT 0x00000040
38
39 #define PTRACE_O_MASK 0x0000007f
40
41 /* Wait extended result codes for the above trace options. */
42 #define PTRACE_EVENT_FORK 1
43 #define PTRACE_EVENT_VFORK 2
44 #define PTRACE_EVENT_CLONE 3
45 #define PTRACE_EVENT_EXEC 4
46 #define PTRACE_EVENT_VFORK_DONE 5
47 #define PTRACE_EVENT_EXIT 6
48
49 #include <asm/ptrace.h>
50
51 #ifdef __KERNEL__
52 /*
53 * Ptrace flags
54 */
55
56 #define PT_PTRACED 0x00000001
57 #define PT_DTRACE 0x00000002 /* delayed trace (used on m68k, i386) */
58 #define PT_TRACESYSGOOD 0x00000004
59 #define PT_PTRACE_CAP 0x00000008 /* ptracer can follow suid-exec */
60 #define PT_TRACE_FORK 0x00000010
61 #define PT_TRACE_VFORK 0x00000020
62 #define PT_TRACE_CLONE 0x00000040
63 #define PT_TRACE_EXEC 0x00000080
64 #define PT_TRACE_VFORK_DONE 0x00000100
65 #define PT_TRACE_EXIT 0x00000200
66 #define PT_ATTACHED 0x00000400 /* parent != real_parent */
67
68 #define PT_TRACE_MASK 0x000003f4
69
70 /* single stepping state bits (used on ARM and PA-RISC) */
71 #define PT_SINGLESTEP_BIT 31
72 #define PT_SINGLESTEP (1<<PT_SINGLESTEP_BIT)
73 #define PT_BLOCKSTEP_BIT 30
74 #define PT_BLOCKSTEP (1<<PT_BLOCKSTEP_BIT)
75
76 #include <linux/compiler.h> /* For unlikely. */
77 #include <linux/sched.h> /* For struct task_struct. */
78
79 extern int ptrace_readdata(struct task_struct *tsk, unsigned long src, char __user *dst, int len);
80 extern int ptrace_writedata(struct task_struct *tsk, char __user *src, unsigned long dst, int len);
81 extern int ptrace_attach(struct task_struct *tsk);
82 extern int ptrace_detach(struct task_struct *, unsigned int);
83 extern void ptrace_disable(struct task_struct *);
84 extern int ptrace_check_attach(struct task_struct *task, int kill);
85 extern int ptrace_request(struct task_struct *child, long request, long addr, long data);
86 extern void ptrace_notify(int exit_code);
87 extern void __ptrace_link(struct task_struct *child,
88 struct task_struct *new_parent);
89 extern void __ptrace_unlink(struct task_struct *child);
90 extern void ptrace_untrace(struct task_struct *child);
91
92 static inline void ptrace_link(struct task_struct *child,
93 struct task_struct *new_parent)
94 {
95 if (unlikely(child->ptrace))
96 __ptrace_link(child, new_parent);
97 }
98 static inline void ptrace_unlink(struct task_struct *child)
99 {
100 if (unlikely(child->ptrace))
101 __ptrace_unlink(child);
102 }
103
104
105 #ifndef force_successful_syscall_return
106 /*
107 * System call handlers that, upon successful completion, need to return a
108 * negative value should call force_successful_syscall_return() right before
109 * returning. On architectures where the syscall convention provides for a
110 * separate error flag (e.g., alpha, ia64, ppc{,64}, sparc{,64}, possibly
111 * others), this macro can be used to ensure that the error flag will not get
112 * set. On architectures which do not support a separate error flag, the macro
113 * is a no-op and the spurious error condition needs to be filtered out by some
114 * other means (e.g., in user-level, by passing an extra argument to the
115 * syscall handler, or something along those lines).
116 */
117 #define force_successful_syscall_return() do { } while (0)
118 #endif
119
120 #endif
121
122 #endif
123
|
This page was automatically generated by the
LXR engine.
|